fun concepts! i like the implementation of the time, the rougelite-aspect and the "revisiting" of the map with new abilitys. My only complaint would be, that working with coins could get a bit grindy, but it is fine for a gamejam-version. If you keep working on the game, the meotrid-style of finding abilitys in the world could work as well :D
btw, did the music change when i got an upgrade?